Soldering-tool



(No Model.)

E. L. BARBER. SOLDERNG TOOL.

Patented Nov. 1,1892.

.............................. mvMmmWw) 'NN/r R R E l l l! "m" HIIIIIII UNITEDy STATES PATENT OFFICE.

EDVIN L. BARBER, OF CHICAGO, ILLINOIS.

SOLDERING-TOOL.

SPECIFICATION forming part of Letters Patent No. 485,161, dated November 1, 1892.

Application led January 30. 1892. Serial No. 419,762. (No model.)

To all whom t may concern:

Be it known that I, EDWIN L. BARBER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Soldering-Tools; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, refer ence being had to the accompanying draw.- ings, and to the letters of reference marked thereon, which form a part of this specication.

M-y invention consists in improvements in self-heating sold ering-tools, and particularly in the tool of this class for which Letters Patent ot the United States, No.446,765, were issued to me February 17, 1891.

The object of the invention is to secure a concentration of the flame within the soldering-point and to modify and change the construction of various parts of the tool for the purposes of simplicity and effectiveness, as

hereinafter` fully set forth.

In the accompanying drawings, Figure 1 is au elevation of the improved tool. Fig. 2 is a longitudinal section on the line 2 2 of Fig. 1. Fig. 3 is a transverse section on the line 3 3 of Fig. 2. Fig. 4 is a sectional View on the line a 4 of Fig. 3. Fig. 5 is a view of the heel of the soldering-point. Fig. 6 is a sectional view on the line 6 6 of Fig. 3, and Fig. 7 is a sectional view of a modication of the device for filling the reservoir of the tool.

As in the tool described in my former patent above referred to, I use an outer metal sleeve or shell P. Within one end of this shell is inserted the heel of the solderingpoint A, these parts being firmly held together in any desired manner. The shell P is prolonged at its opposite end by means of arms G; or, more properly, portions of the shell are cut away so as to leave one or more large openings. Beyond these openings the shell is again circular in form, and upon its end is rigidly fitted a ring g.

A tubular tank or reservoir K for holding gasoline or other volatile hydrocarbon has one of its ends inserted firmly within the ring g. A small tube E extends from the reservoir K longitudinally within the shell P and communicates with a channel T in an annular diaphragm F, which is located across the shell P. The diaphragm F is of cast metal and of such thickness as to give it considerable loody. Au arm fextends from th diaphragm, of which it forms an integral part, toward the reservoir, and inclines substantially to the center of the shell P, and is again projected longitudinally toward the tank K, the central section being externally screw-threaded to receive a cap m, which forms a stuiiingbox, for the purpose hereinafter described. That portion of the arm f at which it is carried from the wall of the shell P to the center thereof forms a shoulder, into which the pipe E is tightly secured by screw-thread or otherwise. The chanuelT is drilled into the casting F f so as to extend from the end of the pipe E nearly but not completely through the diaphragm F and then backwardly through the arm f, and follows the -conformation of the piece last named. At t t, Fig. 4, are shown openings made in drilling the channel T, which openings should be carefully plugged. A burner-tube D, open at both ends, is fitted within the central orifice of the diaphragm F and extends toward the heel of the point A, but does not come in contact therewith. At a point directly opposite the center of the tubeD a small orifice u is made in the armf, reaching to the channel T. A needle-valve n controls this orifice from within the channel T, its stem passing through an opening in the arm f opposite the orifice u and through the stufling-box M, the orice in the cap of which and the stem of the valve being correspondingly screw-threaded.

A longitudinal sleeve la extends entirely through the reservoir K for the accommodation of the stem of the valve n. The valvestem extends beyond the end of the reservoir K, and a suitable wheel or T-handle H is adjusted to it.

The shell P and the diaphragm F are secured together in any desirable manner, as shown, by means of a screw p. Openings p are formed in the shell P between the diaphragm F and the soldering-point for the escape of the products of combustion.

The tube E extends through the inner end of the reservoir K and terminates near its outer end, the end of the tube being curved IOO ` by allowing a small somewhat, as shown at e. An orifice e is formed in the side of the tube Within'the reservoir and near the inner end of the latter. There 1s a filling-orifice in the side of the reservolr K, a cap .I being used to close it. A suitable gasket should be used with this cap to secure a gas-tight joint. If desired, there may be substituted for the cap J a nipple j, upon which may be adjusted a flexible `hose to communicate With the gas-pipe, so that gas may be used in lieu of gasoline, the tool being adapted equally Well for the use of either.

It is found in practice that the reservoirK becomes heated to such an extent as to be uncomfortable to handle. To obviate this dlfficulty I, supply the tool with a wooden handle in the form of asleeve I, Whichis adapted to slide upon the reservoir K before the shell P is adj ustedto it.

soldering-pointA is necessarily secured bythe u se of a core in casting. It may be found desirable to form this recess by means of a drill.

In operation, the flamehaving been started drop into the tube D, gas is immediately generated in the channel T and escapes through the orifice u. The casting F soon becomes heated to such an'extent that the generation of gas 1s sufficient to cause a back-set into the reservoir K. This back-set of gas finds its Way tothe farther end of the reservoir and develops considerable pressure Within it. Gasoline enters the pipe E'through the orice e and creeps down the tube past-the gas to the channel T, and thereby feeds the flame. The .gas is forced out of the orifice uWi-th sufficient velocityto pass through the tube D and carry with it air in quantity ample to insure prefect combustionand throw a strong :flame into the Vrecess a. This recess tends to concentrate ythe heat upon the body of the soldering-point A, Which becomes heated very quickly. A portion of theflame finds its Way through the channel a', and other portions are deliected back against the diaphragm F, thereby maintaining it at a high vtemperature and insuring a constant development of gas.

The coiled pipe shown in my former patent,

quantity of gasoline tov heretofore referred to, is found unnecessary inthe present form of construction, thereby lessening the cost of production and decreasing the liability of injury to the tool by careless handling. By using a long stem for the needle-valve the handle is so located as to be easily manipulated and is so far removed from the ame that it does not become excessively hot.

It is found in practice that the curvature e in the pipe E insures a much stronger flame than can be obtained without it.

In kthe use of gas drawn from the gas-pipe in lieu of gasoline the operation of the tool is the same as heretofore described.

I claim- 1. In a self-heating soldering-tool, the cornbination of a tubular shell P, a soldering-point having its heel centrally recessed and fitted Within the shell, a fuel-reservoir adjusted t-o As shown, the recess a in the Vheel of the the opposite end of ytheshelL'a'solid annular .diaphragm adapted to fit-Within the tubular shell and lhaving an arm extending toward the reservoir and inclined to the central line of theshell, said diaphragm having a passage through it from a point on its arm adjacent to the side of the shell to avpoint adjacent to the remote side of the diaphragm and returning through the arm and opening in both directions substantially upon the median line ofthe shell, a tube leadingfrom the reservoir to the side opening of said passage, a needlevalve adapted to close the two central openings, and a burner-tube having both ends open and fitted Within the central-orifice of the diaphragm, substantially as described.

2. The combination, With a self-heating soldering-tool, of a vapor-burner, `a fuel-reservoir, and a service-pipe leading from the reservoir to the burner, said pipe being extended into the interior of the reservoir and having yopenings at its end and also at its-side Within the reservoir, substantially as described.

In testimony whereof I affix my signature in presence of ,two witnesses.

EDWIN L. BARBER.

Witnesses:

J. H. DARIAN, FRANKG. WARD. 

